Mushi-Shi
Season 1, Episode 21: Cotton Changeling
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A lady named Aki discovered a green stain on her wedding gown, one year later she gave birth to a boy who, now grown up, has the same marks on his body. It turns out that the boy was originally born not as a human but as some shapeless green blob, which then turned into a human. Her husband asks for Ginko's help yet he is unable to save her son because it's the work of a "Watahaki".
All Episodes - Season 1
Episode 1
The Green Seat
Episode 2
The Light of the Eyelid
Episode 3
Tender Horns
Episode 4
The Pillow Pathway
Episode 5
The Traveling Swamp
Episode 6
Those Who Inhale the Dew
Episode 7
Raindrops and Rainbows
Episode 8
Where Sea Meets Man
Episode 9
The Heavy Seed
Episode 10
The White Which Lives Within the Ink Stone
Episode 11
The Sleeping Mountain
Episode 12
One-Eyed Fish
Episode 13
One-Night Bridge
Episode 14
Inside the Cage
Episode 15
Pretense of Spring
Episode 16
Sunrise Serpent
Episode 17
Pickers of Empty Cocoons
Episode 18
Clothes That Embrace the Mountain
Episode 19
String from the Sky
Episode 20
A Sea of Writings
Episode 21
Cotton Changeling
Episode 22
Shrine in the Sea
Episode 23
The Sound of Rust
Episode 24
The Journey to the Field of Fire
Episode 25
Eye of Fortune, Eye of Misfortune
Episode 26
The Sound of Footsteps on the Grass